Ground update

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@4158 85f007b7-540e-0410-9357-904b9bb8a0f7

6 files changed, 107 insertions, 88 deletions

diff --git a/.depend b/.depend
index a577408e7c..ecae0d18f7 100644
--- a/.depend
+++ b/.depend
@@ -45,10 +45,10 @@ kernel/indtypes.cmi: kernel/declarations.cmi kernel/entries.cmi \
     kernel/univ.cmi 
 kernel/inductive.cmi: kernel/declarations.cmi kernel/environ.cmi \
     kernel/names.cmi kernel/term.cmi kernel/univ.cmi 
-kernel/modops.cmi: kernel/declarations.cmi kernel/entries.cmi \
-    kernel/environ.cmi kernel/names.cmi kernel/univ.cmi lib/util.cmi 
 kernel/mod_typing.cmi: kernel/declarations.cmi kernel/entries.cmi \
     kernel/environ.cmi 
+kernel/modops.cmi: kernel/declarations.cmi kernel/entries.cmi \
+    kernel/environ.cmi kernel/names.cmi kernel/univ.cmi lib/util.cmi 
 kernel/names.cmi: lib/pp.cmi lib/predicate.cmi 
 kernel/reduction.cmi: kernel/environ.cmi kernel/sign.cmi kernel/term.cmi \
     kernel/univ.cmi 
@@ -68,6 +68,9 @@ kernel/typeops.cmi: kernel/entries.cmi kernel/environ.cmi kernel/names.cmi \
 kernel/univ.cmi: kernel/names.cmi lib/pp.cmi 
 lib/bignat.cmi: lib/pp.cmi 
 lib/pp.cmi: lib/pp_control.cmi 
+lib/rtree.cmi: lib/pp.cmi 
+lib/system.cmi: lib/pp.cmi 
+lib/util.cmi: lib/pp.cmi 
 library/declare.cmi: kernel/cooking.cmi library/decl_kinds.cmo \
     kernel/declarations.cmi library/dischargedhypsmap.cmi kernel/entries.cmi \
     kernel/indtypes.cmi library/libnames.cmi library/libobject.cmi \
@@ -96,9 +99,6 @@ library/library.cmi: library/libnames.cmi library/libobject.cmi \
 library/nameops.cmi: kernel/names.cmi lib/pp.cmi kernel/term.cmi 
 library/nametab.cmi: library/libnames.cmi kernel/names.cmi lib/pp.cmi \
     lib/util.cmi 
-lib/rtree.cmi: lib/pp.cmi 
-lib/system.cmi: lib/pp.cmi 
-lib/util.cmi: lib/pp.cmi 
 parsing/ast.cmi: parsing/coqast.cmi lib/dyn.cmi interp/genarg.cmi \
     library/libnames.cmi kernel/names.cmi lib/pp.cmi interp/topconstr.cmi \
     lib/util.cmi 
@@ -318,11 +318,11 @@ toplevel/recordobj.cmi: library/libnames.cmi proofs/tacexpr.cmo
 toplevel/searchisos.cmi: library/libobject.cmi kernel/names.cmi \
     kernel/term.cmi 
 toplevel/toplevel.cmi: parsing/pcoq.cmi lib/pp.cmi 
+toplevel/vernac.cmi: parsing/pcoq.cmi lib/util.cmi toplevel/vernacexpr.cmo 
 toplevel/vernacentries.cmi: kernel/environ.cmi pretyping/evd.cmi \
     library/libnames.cmi kernel/names.cmi kernel/term.cmi \
     interp/topconstr.cmi toplevel/vernacexpr.cmo toplevel/vernacinterp.cmi 
 toplevel/vernacinterp.cmi: proofs/tacexpr.cmo 
-toplevel/vernac.cmi: parsing/pcoq.cmi lib/util.cmi toplevel/vernacexpr.cmo 
 translate/ppconstrnew.cmi: parsing/coqast.cmi kernel/environ.cmi \
     parsing/extend.cmi interp/genarg.cmi library/libnames.cmi \
     kernel/names.cmi pretyping/pattern.cmi parsing/pcoq.cmi lib/pp.cmi \
@@ -340,11 +340,11 @@ contrib/cc/ccalgo.cmi: kernel/names.cmi kernel/term.cmi
 contrib/cc/ccproof.cmi: contrib/cc/ccalgo.cmi kernel/names.cmi 
 contrib/correctness/past.cmi: kernel/names.cmi contrib/correctness/ptype.cmi \
     kernel/term.cmi interp/topconstr.cmi lib/util.cmi 
+contrib/correctness/pcic.cmi: contrib/correctness/past.cmi \
+    pretyping/rawterm.cmi 
 contrib/correctness/pcicenv.cmi: kernel/names.cmi \
     contrib/correctness/penv.cmi contrib/correctness/prename.cmi \
     kernel/sign.cmi kernel/term.cmi 
-contrib/correctness/pcic.cmi: contrib/correctness/past.cmi \
-    pretyping/rawterm.cmi 
 contrib/correctness/pdb.cmi: kernel/names.cmi contrib/correctness/past.cmi \
     contrib/correctness/ptype.cmi 
 contrib/correctness/peffect.cmi: kernel/names.cmi lib/pp.cmi 
@@ -489,14 +489,6 @@ ide/config_lexer.cmo: ide/config_parser.cmi lib/util.cmi
 ide/config_lexer.cmx: ide/config_parser.cmx lib/util.cmx 
 ide/config_parser.cmo: lib/util.cmi ide/config_parser.cmi 
 ide/config_parser.cmx: lib/util.cmx ide/config_parser.cmi 
-ide/coqide.cmo: ide/blaster_window.cmo ide/command_windows.cmi ide/coq.cmi \
-    ide/coq_commands.cmo ide/find_phrase.cmo ide/highlight.cmo \
-    ide/ideutils.cmi proofs/pfedit.cmi ide/preferences.cmi ide/undo.cmi \
-    lib/util.cmi toplevel/vernacexpr.cmo ide/coqide.cmi 
-ide/coqide.cmx: ide/blaster_window.cmx ide/command_windows.cmx ide/coq.cmx \
-    ide/coq_commands.cmx ide/find_phrase.cmx ide/highlight.cmx \
-    ide/ideutils.cmx proofs/pfedit.cmx ide/preferences.cmx ide/undo.cmx \
-    lib/util.cmx toplevel/vernacexpr.cmx ide/coqide.cmi 
 ide/coq.cmo: toplevel/cerrors.cmi config/coq_config.cmi toplevel/coqtop.cmi \
     kernel/declarations.cmi kernel/environ.cmi pretyping/evarutil.cmi \
     pretyping/evd.cmi library/global.cmi tactics/hipattern.cmi \
@@ -519,6 +511,14 @@ ide/coq.cmx: toplevel/cerrors.cmx config/coq_config.cmx toplevel/coqtop.cmx \
     toplevel/vernacentries.cmx toplevel/vernacexpr.cmx ide/coq.cmi 
 ide/coq_tactics.cmo: ide/coq_tactics.cmi 
 ide/coq_tactics.cmx: ide/coq_tactics.cmi 
+ide/coqide.cmo: ide/blaster_window.cmo ide/command_windows.cmi ide/coq.cmi \
+    ide/coq_commands.cmo ide/find_phrase.cmo ide/highlight.cmo \
+    ide/ideutils.cmi proofs/pfedit.cmi ide/preferences.cmi ide/undo.cmi \
+    lib/util.cmi toplevel/vernacexpr.cmo ide/coqide.cmi 
+ide/coqide.cmx: ide/blaster_window.cmx ide/command_windows.cmx ide/coq.cmx \
+    ide/coq_commands.cmx ide/find_phrase.cmx ide/highlight.cmx \
+    ide/ideutils.cmx proofs/pfedit.cmx ide/preferences.cmx ide/undo.cmx \
+    lib/util.cmx toplevel/vernacexpr.cmx ide/coqide.cmi 
 ide/find_phrase.cmo: ide/ideutils.cmi 
 ide/find_phrase.cmx: ide/ideutils.cmx 
 ide/highlight.cmo: ide/ideutils.cmi 
@@ -669,12 +669,6 @@ kernel/inductive.cmo: kernel/declarations.cmi kernel/environ.cmi \
 kernel/inductive.cmx: kernel/declarations.cmx kernel/environ.cmx \
     kernel/names.cmx kernel/reduction.cmx kernel/sign.cmx kernel/term.cmx \
     kernel/type_errors.cmx kernel/univ.cmx lib/util.cmx kernel/inductive.cmi 
-kernel/modops.cmo: kernel/declarations.cmi kernel/entries.cmi \
-    kernel/environ.cmi kernel/names.cmi lib/pp.cmi kernel/term.cmi \
-    kernel/univ.cmi lib/util.cmi kernel/modops.cmi 
-kernel/modops.cmx: kernel/declarations.cmx kernel/entries.cmx \
-    kernel/environ.cmx kernel/names.cmx lib/pp.cmx kernel/term.cmx \
-    kernel/univ.cmx lib/util.cmx kernel/modops.cmi 
 kernel/mod_typing.cmo: kernel/declarations.cmi kernel/entries.cmi \
     kernel/environ.cmi kernel/modops.cmi kernel/names.cmi \
     kernel/reduction.cmi kernel/subtyping.cmi kernel/term_typing.cmi \
@@ -683,6 +677,12 @@ kernel/mod_typing.cmx: kernel/declarations.cmx kernel/entries.cmx \
     kernel/environ.cmx kernel/modops.cmx kernel/names.cmx \
     kernel/reduction.cmx kernel/subtyping.cmx kernel/term_typing.cmx \
     kernel/typeops.cmx kernel/univ.cmx lib/util.cmx kernel/mod_typing.cmi 
+kernel/modops.cmo: kernel/declarations.cmi kernel/entries.cmi \
+    kernel/environ.cmi kernel/names.cmi lib/pp.cmi kernel/term.cmi \
+    kernel/univ.cmi lib/util.cmi kernel/modops.cmi 
+kernel/modops.cmx: kernel/declarations.cmx kernel/entries.cmx \
+    kernel/environ.cmx kernel/names.cmx lib/pp.cmx kernel/term.cmx \
+    kernel/univ.cmx lib/util.cmx kernel/modops.cmi 
 kernel/names.cmo: lib/hashcons.cmi lib/options.cmi lib/pp.cmi \
     lib/predicate.cmi lib/util.cmi kernel/names.cmi 
 kernel/names.cmx: lib/hashcons.cmx lib/options.cmx lib/pp.cmx \
@@ -763,10 +763,10 @@ lib/edit.cmo: lib/bstack.cmi lib/pp.cmi lib/util.cmi lib/edit.cmi
 lib/edit.cmx: lib/bstack.cmx lib/pp.cmx lib/util.cmx lib/edit.cmi 
 lib/explore.cmo: lib/explore.cmi 
 lib/explore.cmx: lib/explore.cmi 
-lib/gmapl.cmo: lib/gmap.cmi lib/util.cmi lib/gmapl.cmi 
-lib/gmapl.cmx: lib/gmap.cmx lib/util.cmx lib/gmapl.cmi 
 lib/gmap.cmo: lib/gmap.cmi 
 lib/gmap.cmx: lib/gmap.cmi 
+lib/gmapl.cmo: lib/gmap.cmi lib/util.cmi lib/gmapl.cmi 
+lib/gmapl.cmx: lib/gmap.cmx lib/util.cmx lib/gmapl.cmi 
 lib/gset.cmo: lib/gset.cmi 
 lib/gset.cmx: lib/gset.cmi 
 lib/hashcons.cmo: lib/hashcons.cmi 
@@ -775,14 +775,24 @@ lib/heap.cmo: lib/heap.cmi
 lib/heap.cmx: lib/heap.cmi 
 lib/options.cmo: lib/util.cmi lib/options.cmi 
 lib/options.cmx: lib/util.cmx lib/options.cmi 
-lib/pp_control.cmo: lib/pp_control.cmi 
-lib/pp_control.cmx: lib/pp_control.cmi 
 lib/pp.cmo: lib/pp_control.cmi lib/pp.cmi 
 lib/pp.cmx: lib/pp_control.cmx lib/pp.cmi 
+lib/pp_control.cmo: lib/pp_control.cmi 
+lib/pp_control.cmx: lib/pp_control.cmi 
 lib/predicate.cmo: lib/predicate.cmi 
 lib/predicate.cmx: lib/predicate.cmi 
 lib/profile.cmo: lib/profile.cmi 
 lib/profile.cmx: lib/profile.cmi 
+lib/rtree.cmo: lib/pp.cmi lib/util.cmi lib/rtree.cmi 
+lib/rtree.cmx: lib/pp.cmx lib/util.cmx lib/rtree.cmi 
+lib/stamps.cmo: lib/stamps.cmi 
+lib/stamps.cmx: lib/stamps.cmi 
+lib/system.cmo: config/coq_config.cmi lib/pp.cmi lib/util.cmi lib/system.cmi 
+lib/system.cmx: config/coq_config.cmx lib/pp.cmx lib/util.cmx lib/system.cmi 
+lib/tlm.cmo: lib/gmap.cmi lib/gset.cmi lib/tlm.cmi 
+lib/tlm.cmx: lib/gmap.cmx lib/gset.cmx lib/tlm.cmi 
+lib/util.cmo: lib/pp.cmi lib/util.cmi 
+lib/util.cmx: lib/pp.cmx lib/util.cmi 
 library/declare.cmo: library/decl_kinds.cmo kernel/declarations.cmi \
     library/dischargedhypsmap.cmi kernel/entries.cmi kernel/environ.cmi \
     library/global.cmi library/impargs.cmi kernel/indtypes.cmi \
@@ -887,16 +897,6 @@ library/states.cmx: library/lib.cmx library/library.cmx library/summary.cmx \
     lib/system.cmx library/states.cmi 
 library/summary.cmo: lib/dyn.cmi lib/pp.cmi lib/util.cmi library/summary.cmi 
 library/summary.cmx: lib/dyn.cmx lib/pp.cmx lib/util.cmx library/summary.cmi 
-lib/rtree.cmo: lib/pp.cmi lib/util.cmi lib/rtree.cmi 
-lib/rtree.cmx: lib/pp.cmx lib/util.cmx lib/rtree.cmi 
-lib/stamps.cmo: lib/stamps.cmi 
-lib/stamps.cmx: lib/stamps.cmi 
-lib/system.cmo: config/coq_config.cmi lib/pp.cmi lib/util.cmi lib/system.cmi 
-lib/system.cmx: config/coq_config.cmx lib/pp.cmx lib/util.cmx lib/system.cmi 
-lib/tlm.cmo: lib/gmap.cmi lib/gset.cmi lib/tlm.cmi 
-lib/tlm.cmx: lib/gmap.cmx lib/gset.cmx lib/tlm.cmi 
-lib/util.cmo: lib/pp.cmi lib/util.cmi 
-lib/util.cmx: lib/pp.cmx lib/util.cmi 
 parsing/argextend.cmo: parsing/ast.cmi interp/genarg.cmi parsing/pcoq.cmi \
     parsing/q_coqast.cmo parsing/q_util.cmi lib/util.cmi \
     toplevel/vernacexpr.cmo 
@@ -2021,10 +2021,10 @@ tactics/wcclausenv.cmx: proofs/clenv.cmx kernel/environ.cmx \
     pretyping/reductionops.cmx proofs/refiner.cmx kernel/sign.cmx \
     proofs/tacmach.cmx kernel/term.cmx pretyping/termops.cmx lib/util.cmx \
     tactics/wcclausenv.cmi 
-tools/coqdep.cmo: config/coq_config.cmi tools/coqdep_lexer.cmo 
-tools/coqdep.cmx: config/coq_config.cmx tools/coqdep_lexer.cmx 
 tools/coq_vo2xml.cmo: config/coq_config.cmi toplevel/usage.cmi 
 tools/coq_vo2xml.cmx: config/coq_config.cmx toplevel/usage.cmx 
+tools/coqdep.cmo: config/coq_config.cmi tools/coqdep_lexer.cmo 
+tools/coqdep.cmx: config/coq_config.cmx tools/coqdep_lexer.cmx 
 tools/gallina.cmo: tools/gallina_lexer.cmo 
 tools/gallina.cmx: tools/gallina_lexer.cmx 
 toplevel/cerrors.cmo: parsing/ast.cmi pretyping/cases.cmi toplevel/himsg.cmi \
@@ -2231,6 +2231,18 @@ toplevel/toplevel.cmx: toplevel/cerrors.cmx library/lib.cmx \
     toplevel/vernac.cmx toplevel/vernacexpr.cmx toplevel/toplevel.cmi 
 toplevel/usage.cmo: config/coq_config.cmi toplevel/usage.cmi 
 toplevel/usage.cmx: config/coq_config.cmx toplevel/usage.cmi 
+toplevel/vernac.cmo: interp/constrextern.cmi interp/constrintern.cmi \
+    parsing/coqast.cmi parsing/lexer.cmi library/lib.cmi library/library.cmi \
+    kernel/names.cmi lib/options.cmi parsing/pcoq.cmi proofs/pfedit.cmi \
+    lib/pp.cmi translate/ppvernacnew.cmi library/states.cmi lib/system.cmi \
+    lib/util.cmi toplevel/vernacentries.cmi toplevel/vernacexpr.cmo \
+    toplevel/vernacinterp.cmi toplevel/vernac.cmi 
+toplevel/vernac.cmx: interp/constrextern.cmx interp/constrintern.cmx \
+    parsing/coqast.cmx parsing/lexer.cmx library/lib.cmx library/library.cmx \
+    kernel/names.cmx lib/options.cmx parsing/pcoq.cmx proofs/pfedit.cmx \
+    lib/pp.cmx translate/ppvernacnew.cmx library/states.cmx lib/system.cmx \
+    lib/util.cmx toplevel/vernacentries.cmx toplevel/vernacexpr.cmx \
+    toplevel/vernacinterp.cmx toplevel/vernac.cmi 
 toplevel/vernacentries.cmo: tactics/auto.cmi toplevel/class.cmi \
     pretyping/classops.cmi toplevel/command.cmi interp/constrextern.cmi \
     interp/constrintern.cmi library/decl_kinds.cmo library/declaremods.cmi \
@@ -2291,18 +2303,6 @@ toplevel/vernacinterp.cmx: parsing/ast.cmx parsing/coqast.cmx \
     kernel/names.cmx lib/options.cmx lib/pp.cmx proofs/proof_type.cmx \
     proofs/tacexpr.cmx tactics/tacinterp.cmx lib/util.cmx \
     toplevel/vernacexpr.cmx toplevel/vernacinterp.cmi 
-toplevel/vernac.cmo: interp/constrextern.cmi interp/constrintern.cmi \
-    parsing/coqast.cmi parsing/lexer.cmi library/lib.cmi library/library.cmi \
-    kernel/names.cmi lib/options.cmi parsing/pcoq.cmi proofs/pfedit.cmi \
-    lib/pp.cmi translate/ppvernacnew.cmi library/states.cmi lib/system.cmi \
-    lib/util.cmi toplevel/vernacentries.cmi toplevel/vernacexpr.cmo \
-    toplevel/vernacinterp.cmi toplevel/vernac.cmi 
-toplevel/vernac.cmx: interp/constrextern.cmx interp/constrintern.cmx \
-    parsing/coqast.cmx parsing/lexer.cmx library/lib.cmx library/library.cmx \
-    kernel/names.cmx lib/options.cmx parsing/pcoq.cmx proofs/pfedit.cmx \
-    lib/pp.cmx translate/ppvernacnew.cmx library/states.cmx lib/system.cmx \
-    lib/util.cmx toplevel/vernacentries.cmx toplevel/vernacexpr.cmx \
-    toplevel/vernacinterp.cmx toplevel/vernac.cmi 
 translate/ppconstrnew.cmo: parsing/ast.cmi lib/bignat.cmi \
     interp/constrextern.cmi interp/constrintern.cmi parsing/coqast.cmi \
     pretyping/evd.cmi interp/genarg.cmi library/global.cmi \
@@ -2379,18 +2379,6 @@ contrib/cc/cctac.cmx: contrib/cc/ccalgo.cmx contrib/cc/ccproof.cmx \
     parsing/pptactic.cmx proofs/proof_type.cmx proofs/refiner.cmx \
     tactics/tacinterp.cmx proofs/tacmach.cmx tactics/tacticals.cmx \
     tactics/tactics.cmx kernel/term.cmx lib/util.cmx 
-contrib/correctness/pcicenv.cmo: library/global.cmi kernel/names.cmi \
-    contrib/correctness/past.cmi contrib/correctness/penv.cmi \
-    contrib/correctness/pmisc.cmi contrib/correctness/pmonad.cmi \
-    contrib/correctness/prename.cmi contrib/correctness/ptype.cmi \
-    contrib/correctness/putil.cmi kernel/sign.cmi kernel/term.cmi \
-    kernel/univ.cmi contrib/correctness/pcicenv.cmi 
-contrib/correctness/pcicenv.cmx: library/global.cmx kernel/names.cmx \
-    contrib/correctness/past.cmi contrib/correctness/penv.cmx \
-    contrib/correctness/pmisc.cmx contrib/correctness/pmonad.cmx \
-    contrib/correctness/prename.cmx contrib/correctness/ptype.cmi \
-    contrib/correctness/putil.cmx kernel/sign.cmx kernel/term.cmx \
-    kernel/univ.cmx contrib/correctness/pcicenv.cmi 
 contrib/correctness/pcic.cmo: kernel/declarations.cmi library/declare.cmi \
     pretyping/detyping.cmi kernel/entries.cmi library/global.cmi \
     kernel/indtypes.cmi library/libnames.cmi library/nameops.cmi \
@@ -2407,6 +2395,18 @@ contrib/correctness/pcic.cmx: kernel/declarations.cmx library/declare.cmx \
     kernel/sign.cmx kernel/term.cmx pretyping/termops.cmx \
     interp/topconstr.cmx kernel/typeops.cmx lib/util.cmx \
     toplevel/vernacexpr.cmx contrib/correctness/pcic.cmi 
+contrib/correctness/pcicenv.cmo: library/global.cmi kernel/names.cmi \
+    contrib/correctness/past.cmi contrib/correctness/penv.cmi \
+    contrib/correctness/pmisc.cmi contrib/correctness/pmonad.cmi \
+    contrib/correctness/prename.cmi contrib/correctness/ptype.cmi \
+    contrib/correctness/putil.cmi kernel/sign.cmi kernel/term.cmi \
+    kernel/univ.cmi contrib/correctness/pcicenv.cmi 
+contrib/correctness/pcicenv.cmx: library/global.cmx kernel/names.cmx \
+    contrib/correctness/past.cmi contrib/correctness/penv.cmx \
+    contrib/correctness/pmisc.cmx contrib/correctness/pmonad.cmx \
+    contrib/correctness/prename.cmx contrib/correctness/ptype.cmi \
+    contrib/correctness/putil.cmx kernel/sign.cmx kernel/term.cmx \
+    kernel/univ.cmx contrib/correctness/pcicenv.cmi 
 contrib/correctness/pdb.cmo: library/declare.cmi library/global.cmi \
     kernel/names.cmi library/nametab.cmi contrib/correctness/past.cmi \
     contrib/correctness/peffect.cmi contrib/correctness/penv.cmi \
@@ -3069,14 +3069,6 @@ contrib/interface/pbp.cmx: interp/coqlib.cmx kernel/environ.cmx \
     proofs/tacmach.cmx tactics/tacticals.cmx tactics/tactics.cmx \
     kernel/term.cmx interp/topconstr.cmx pretyping/typing.cmx lib/util.cmx \
     contrib/interface/pbp.cmi 
-contrib/interface/showproof_ct.cmo: contrib/interface/ascent.cmi \
-    parsing/esyntax.cmi library/global.cmi toplevel/metasyntax.cmi lib/pp.cmi \
-    parsing/printer.cmi contrib/interface/translate.cmi \
-    contrib/interface/vtp.cmi contrib/interface/xlate.cmi 
-contrib/interface/showproof_ct.cmx: contrib/interface/ascent.cmi \
-    parsing/esyntax.cmx library/global.cmx toplevel/metasyntax.cmx lib/pp.cmx \
-    parsing/printer.cmx contrib/interface/translate.cmx \
-    contrib/interface/vtp.cmx contrib/interface/xlate.cmx 
 contrib/interface/showproof.cmo: proofs/clenv.cmi interp/constrintern.cmi \
     parsing/coqast.cmi kernel/declarations.cmi kernel/environ.cmi \
     pretyping/evd.cmi interp/genarg.cmi library/global.cmi \
@@ -3101,6 +3093,14 @@ contrib/interface/showproof.cmx: proofs/clenv.cmx interp/constrintern.cmx \
     pretyping/termops.cmx contrib/interface/translate.cmx \
     pretyping/typing.cmx lib/util.cmx toplevel/vernacinterp.cmx \
     contrib/interface/showproof.cmi 
+contrib/interface/showproof_ct.cmo: contrib/interface/ascent.cmi \
+    parsing/esyntax.cmi library/global.cmi toplevel/metasyntax.cmi lib/pp.cmi \
+    parsing/printer.cmi contrib/interface/translate.cmi \
+    contrib/interface/vtp.cmi contrib/interface/xlate.cmi 
+contrib/interface/showproof_ct.cmx: contrib/interface/ascent.cmi \
+    parsing/esyntax.cmx library/global.cmx toplevel/metasyntax.cmx lib/pp.cmx \
+    parsing/printer.cmx contrib/interface/translate.cmx \
+    contrib/interface/vtp.cmx contrib/interface/xlate.cmx 
 contrib/interface/translate.cmo: contrib/interface/ascent.cmi parsing/ast.cmi \
     interp/constrextern.cmi contrib/interface/ctast.cmo kernel/environ.cmi \
     pretyping/evarutil.cmi pretyping/evd.cmi library/libobject.cmi \
@@ -3331,12 +3331,12 @@ contrib/romega/refl_omega.cmx: parsing/ast.cmx tactics/auto.cmx \
     proofs/proof_type.cmx kernel/reduction.cmx kernel/sign.cmx \
     proofs/tacmach.cmx tactics/tacticals.cmx tactics/tactics.cmx \
     kernel/term.cmx lib/util.cmx 
+contrib/xml/acic.cmo: kernel/names.cmi kernel/term.cmi 
+contrib/xml/acic.cmx: kernel/names.cmx kernel/term.cmx 
 contrib/xml/acic2Xml.cmo: contrib/xml/acic.cmo contrib/xml/cic2acic.cmo \
     kernel/names.cmi kernel/term.cmi lib/util.cmi contrib/xml/xml.cmi 
 contrib/xml/acic2Xml.cmx: contrib/xml/acic.cmx contrib/xml/cic2acic.cmx \
     kernel/names.cmx kernel/term.cmx lib/util.cmx contrib/xml/xml.cmx 
-contrib/xml/acic.cmo: kernel/names.cmi kernel/term.cmi 
-contrib/xml/acic.cmx: kernel/names.cmx kernel/term.cmx 
 contrib/xml/cic2acic.cmo: contrib/xml/acic.cmo library/declare.cmi \
     library/dischargedhypsmap.cmi contrib/xml/doubleTypeInference.cmi \
     kernel/environ.cmi pretyping/evarutil.cmi pretyping/evd.cmi \
@@ -3391,6 +3391,8 @@ contrib/xml/proofTree2Xml.cmx: contrib/xml/acic.cmx contrib/xml/acic2Xml.cmx \
     contrib/xml/xml.cmx 
 contrib/xml/unshare.cmo: contrib/xml/unshare.cmi 
 contrib/xml/unshare.cmx: contrib/xml/unshare.cmi 
+contrib/xml/xml.cmo: contrib/xml/xml.cmi 
+contrib/xml/xml.cmx: contrib/xml/xml.cmi 
 contrib/xml/xmlcommand.cmo: contrib/xml/acic.cmo contrib/xml/acic2Xml.cmo \
     contrib/xml/cic2acic.cmo library/decl_kinds.cmo kernel/declarations.cmi \
     library/declare.cmi kernel/environ.cmi pretyping/evd.cmi \
@@ -3415,8 +3417,10 @@ contrib/xml/xmlentries.cmo: toplevel/cerrors.cmi parsing/egrammar.cmi \
 contrib/xml/xmlentries.cmx: toplevel/cerrors.cmx parsing/egrammar.cmx \
     parsing/extend.cmx interp/genarg.cmx parsing/pcoq.cmx lib/pp.cmx \
     lib/util.cmx toplevel/vernacinterp.cmx contrib/xml/xmlcommand.cmx 
-contrib/xml/xml.cmo: contrib/xml/xml.cmi 
-contrib/xml/xml.cmx: contrib/xml/xml.cmi 
+ide/utils/configwin.cmo: ide/utils/configwin_ihm.cmo \
+    ide/utils/configwin_types.cmo ide/utils/configwin.cmi 
+ide/utils/configwin.cmx: ide/utils/configwin_ihm.cmx \
+    ide/utils/configwin_types.cmx ide/utils/configwin.cmi 
 ide/utils/configwin_html_config.cmo: ide/utils/configwin_ihm.cmo \
     ide/utils/configwin_messages.cmo ide/utils/configwin_types.cmo \
     ide/utils/uoptions.cmi 
@@ -3427,10 +3431,6 @@ ide/utils/configwin_ihm.cmo: ide/utils/configwin_messages.cmo \
     ide/utils/configwin_types.cmo ide/utils/okey.cmi ide/utils/uoptions.cmi 
 ide/utils/configwin_ihm.cmx: ide/utils/configwin_messages.cmx \
     ide/utils/configwin_types.cmx ide/utils/okey.cmx ide/utils/uoptions.cmx 
-ide/utils/configwin.cmo: ide/utils/configwin_ihm.cmo \
-    ide/utils/configwin_types.cmo ide/utils/configwin.cmi 
-ide/utils/configwin.cmx: ide/utils/configwin_ihm.cmx \
-    ide/utils/configwin_types.cmx ide/utils/configwin.cmi 
 ide/utils/configwin_types.cmo: ide/utils/configwin_keys.cmo \
     ide/utils/uoptions.cmi 
 ide/utils/configwin_types.cmx: ide/utils/configwin_keys.cmx \
diff --git a/Makefile b/Makefile
index b0d35951b4..277361023a 100644
--- a/Makefile
+++ b/Makefile
@@ -277,8 +277,8 @@ FUNINDCMO=\
   contrib/funind/tacinvutils.cmo contrib/funind/tacinv.cmo 
 
 FOCMO=\
-  contrib/first-order/formula.cmo contrib/first-order/sequent.cmo \
-  contrib/first-order/unify.cmo contrib/first-order/rules.cmo \
+  contrib/first-order/formula.cmo contrib/first-order/unify.cmo \
+  contrib/first-order/sequent.cmo contrib/first-order/rules.cmo \
   contrib/first-order/instances.cmo contrib/first-order/ground.cmo
 
 CCCMO=contrib/cc/ccalgo.cmo contrib/cc/ccproof.cmo contrib/cc/cctac.cmo  
diff --git a/contrib/first-order/instances.ml b/contrib/first-order/instances.ml
index 8625c988d3..e38af4c0c9 100644
--- a/contrib/first-order/instances.ml
+++ b/contrib/first-order/instances.ml
@@ -27,10 +27,6 @@ open Libnames
 let rev_rels n t= (* requires n = max (free_rels t) *) 
   let l=list_tabulate (fun i->mkRel (n-i)) n in
     substl l t
- 	  
-let renum_metas_from k n t=(* requires n = max (free_rels t) *)
-  let l=list_tabulate (fun i->mkMeta (k+i)) n in
-    substl l t
 
 (* ordre lexico:
    nombre de metas dans terme;
diff --git a/contrib/first-order/sequent.ml b/contrib/first-order/sequent.ml
index 91a8f1ddd8..c63c10f43a 100644
--- a/contrib/first-order/sequent.ml
+++ b/contrib/first-order/sequent.ml
@@ -169,7 +169,16 @@ let deepen seq={seq with depth=seq.depth-1}
  
 let record item seq={seq with history=History.add item seq.history}
 
-let lookup item seq=History.mem item seq.history
+let lookup item seq=
+  History.mem item seq.history ||
+  match item with
+      (_,None)->false
+    | (id,Some ((m,t) as c))->
+	let p (id2,o)=
+	  match o with
+	      None -> false
+	    | Some ((m2,t2) as c2)->id=id2 && m2>m && more_general c2 c in
+	  History.exists p seq.history
 
 let add_left (nam,t) seq internal gl=
   match build_left_entry nam t internal gl seq.cnt with
diff --git a/contrib/first-order/unify.ml b/contrib/first-order/unify.ml
index 30ff1c811d..ffe0070409 100644
--- a/contrib/first-order/unify.ml
+++ b/contrib/first-order/unify.ml
@@ -102,8 +102,8 @@ let value i t=
     vaux t
 	  
 type instance=
-    Real of (int*constr)*int (* nb trous*terme*valeur heuristique *)
-  | Phantom of constr (* domaine de quantification *)
+    Real of (int*constr)*int 
+  | Phantom of constr 
 
 let mk_rel_inst t=
   let new_rel=ref 1 in
@@ -131,4 +131,16 @@ let unif_atoms i dom t1 t2=
     with
 	UFAIL(_,_) ->None
       | Not_found ->Some (Phantom dom)
-	  
+	   	  
+let renum_metas_from k n t= (* requires n = max (free_rels t) *)
+  let l=list_tabulate (fun i->mkMeta (k+i)) n in
+    substl l t
+
+let more_general (m1,t1) (m2,t2)=
+  let mt1=renum_metas_from 0 m1 t1
+  and mt2=renum_metas_from m1 m2 t2 in
+    try 
+      let sigma=unif mt1 mt2 in
+      let p (n,t)= n<m1 || is_head_meta t in
+	List.for_all p sigma
+    with UFAIL(_,_)->false
diff --git a/contrib/first-order/unify.mli b/contrib/first-order/unify.mli
index 013fc73cd1..7e00819517 100644
--- a/contrib/first-order/unify.mli
+++ b/contrib/first-order/unify.mli
@@ -19,3 +19,5 @@ type instance=
   | Phantom of constr        (* domaine de quantification *)
 
 val unif_atoms : metavariable -> constr -> constr -> constr -> instance option
+
+val more_general : (int*constr) -> (int*constr) -> bool